<!DOCTYPE heml>
<html>
<head>
<meta charset="utf-8">
<title>TodoList</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="root">
<div>
<input v-model="inputValue"/>
<button @click="handleSumit">提交</button>
<ul>
<li v-for="(item,index) of list" :key="index">{{item}}</li>
</ul>
</div>
<script>
new Vue({
el:"#root",
data:{
inputValue:'hello',
list:[]
},
methods:{
handleSubmit:fuction(){
this.list.push(this.inputValue)
}
})
}
</script>
</body>
</html>
handleSubmit:function()，同学，你的function拼错了。PS：第一行的html也拼错了hhh